AT 010420C MAR 06, A 1-2-7 IA (TF 1-36) SOLDIER AT A GUARD POST AT (38S KC 987 254) FB 5 IN HIT, REPORTED SEEING (1) AIF 100M S OF HIS POSITION ALONG TROUT RD. THE SOLDIER REPORTED SEEING AN RPG. AFTER CONFIRMING THAT NO CF PATROLS WHERE IN THE VICINITY, THE SOLDIER FIRED AN ENTIRE MAGAZINE FROM HIS AK-47 HITTING A POWER TRANSFORMER RESULTING IN A POWER LOSS TO PORTIONS OF HIT. AT DAYBREAK, TF 1-36 WILL SEND A TEAM TO ASSESS THE DAMAGE. NO CASUALTIES REPORTED.